I like how you can filter by state, city or zip code so that it gives me results very specific of where my site visitors are from instead if just countrywide searches. The interface could use some work but overall its pretty easy once u get used too! Just try using google first because they have almost all features already integrated in there search bar. We wanted something more than Google with our SEO efforts since we're dealing mostly with US states/territories (so not international). Also helps us track down people who don't come back after signing up etc.. I like how it shows you where your users are coming from, but also gives information about what they're searching or clicking through so that we can make sure our website meets those needs as well! We've been able use this in conjunction with Google Analytics (which was already being used)to give us more insight into exactly who visits certain pages of my site/website - allowing me better targeting when creating future campaigns using AdWords / Facebook ads etc..
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